summaryrefslogtreecommitdiff
path: root/include/linux/swiotlb.h
diff options
context:
space:
mode:
authorJeremy Fitzhardinge <jeremy@goop.org>2008-12-16 23:17:26 +0300
committerIngo Molnar <mingo@elte.hu>2008-12-16 23:31:38 +0300
commit8c5df16bec8a60bb8589fc232b9e26cac0ed4b2c (patch)
treeb85d46d552ba86da332ebad328761998171332c5 /include/linux/swiotlb.h
parenta79b7a2a758c39315344f0d86b5adb21d90d786e (diff)
downloadlinux-8c5df16bec8a60bb8589fc232b9e26cac0ed4b2c.tar.xz
swiotlb: allow architectures to override swiotlb pool allocation
Impact: generalize swiotlb allocation code Architectures may need to allocate memory specially for use with the swiotlb. Create the weak function swiotlb_alloc_boot() and swiotlb_alloc() defaulting to the current behaviour. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/swiotlb.h')
-rw-r--r--include/linux/swiotlb.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index b18ec5533e8c..b8c5fc766a56 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -10,6 +10,9 @@ struct scatterlist;
extern void
swiotlb_init(void);
+extern void *swiotlb_alloc_boot(size_t bytes, unsigned long nslabs);
+extern void *swiotlb_alloc(unsigned order, unsigned long nslabs);
+
extern void
*swiotlb_alloc_coherent(struct device *hwdev, size_t size,
dma_addr_t *dma_handle, gfp_t flags);